| error[E0658]: the precise format of `Fn`-family traits' type parameters is subject to change |
| --> $DIR/unboxed-closure-sugar-not-used-on-fn.rs:3:17 |
| | |
| LL | fn bar1(x: &dyn Fn<(), Output=()>) { |
| | ^^^^^^^^^^^^^^^^^ help: use parenthetical notation instead: `Fn() -> ()` |
| | |
| = note: see issue #29625 <https://github.com/rust-lang/rust/issues/29625> for more information |
| = help: add `#![feature(unboxed_closures)]` to the crate attributes to enable |
| = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date |
| |
| error[E0658]: the precise format of `Fn`-family traits' type parameters is subject to change |
| --> $DIR/unboxed-closure-sugar-not-used-on-fn.rs:7:28 |
| | |
| LL | fn bar2<T>(x: &T) where T: Fn<()> { |
| | ^^^^^^ help: use parenthetical notation instead: `Fn() -> ()` |
| | |
| = note: see issue #29625 <https://github.com/rust-lang/rust/issues/29625> for more information |
| = help: add `#![feature(unboxed_closures)]` to the crate attributes to enable |
| = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date |
| |
| error: aborting due to 2 previous errors |
| |
| For more information about this error, try `rustc --explain E0658`. |